<template>
  <view>
    <!-- 选择收货地址的按钮 -->
    <!-- 判断 address 转化成字符串后是否为空 如果为空就显示按钮，不为空就把地址渲染到页面 -->
    <view class="address-choose-box" v-if="JSON.stringify(address) === '{}'">
      <button type="primary" size="mini" class="btnChooseAddress" @click="chooseAddress">选择收获地址</button>
    </view>
    
    
    <!-- 渲染收获信息的盒子 -->    <!-- 想要修改地址时，绑定一个点击事件 -->
    <view class="address-info-box" v-else @click="chooseAddress">
      <view class="row1">
        <view class="row1-left">
          <view class="username">收货人:<text>{{address.userName}}</text></view>
        </view>
        <view class="row1-right">
          <view class="phone">电话:<text>{{address.telNumber}}</text></view>
          <uni-icons type="arrowright" size="16"></uni-icons>
        </view>
      </view>
      <view class="row2">
        <view class="row2-left">收货地址:</view>
        <view class="row2-right">{{addstr}}</view>
      </view>
    </view>
    
    
    <!-- 底部的边框线 -->
    <image src="/static/cart_border@2x.png" class="address-border"></image>
  </view>
</template>

<script>
  // 按需导入辅助函数
  import { mapState, mapMutations, mapGetters } from 'vuex'
  
  export default {
    data() {
      return {
        // 装收货地址的
        // address: {}  使用vuex的方法来重新映射页面数据
      }
    },
    
    methods: {
      ...mapMutations('m_user', ['updateAddress']),
      
      // 点击按钮的事件
      async chooseAddress() {
        // 调用小程序提供的 chooseAddress() 方法，即可使用选择收货地址的功能
        // 返回值是一个数组：第 1 项为错误对象；第 2 项为成功之后的收货地址对象
        const [err, succ] = await uni.chooseAddress().catch(err => err)
        // console.log(succ)
        // this.updateAddress(succ)
        
        // 如果用户成功的选择了地址，就为address赋值
        if (err === null && succ.errMsg === 'chooseAddress:ok') {
          // this.address = succ
          this.updateAddress(succ)
        }
      },
      
    },
    
    // 
    computed:{
      ...mapState('m_user', ['address']),
      ...mapGetters('m_user', ['addstr'])
    }
  }
</script>

<style lang="scss">
  .address-border {
    display: block;
    width: 100%;
    height: 5px;
  }
  
  .address-choose-box {
    height: 90px;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  
  .address-info-box {
    font-size: 12px;
    height: 90px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 0 5px;
    
    .row1 {
      display: flex;
      justify-content: space-between;
      
      .row1-right {
        display: flex;
        align-items: center;
        
        .phone {
          margin-right: 6px;
        }
      }
    }
    
    .row2 {
      display: flex;
      align-items: center;
      margin-top: 10px;
      
      .row2-left {
        white-space: nowrap;
        margin-right: 5px;
      }
    }
  }
</style>